MmAllocateMappingAddressEx function (wdm.h)

The MmAllocateMappingAddressEx function allocates a system PTE mapping of the requested length that can be used later to map arbitrary addresses.

Syntax

PVOID MmAllocateMappingAddressEx(
  SIZE_T NumberOfBytes,
  ULONG  PoolTag,
  ULONG  Flags
);

Parameters

NumberOfBytes

Supplies the maximum number of bytes the mapping can span.

PoolTag

Supplies a pool tag to associate this mapping to the caller.

Flags

Return value

Returns a virtual address where to use for later mappings.

Requirements